The newest member of Royal Caribbean International’s Oasis class of ships, Symphony of the Seas, is now one step closer to full completion as its April 2018 debut approaches. With the exterior now complete, Symphony of the Seas was floated out of its dry dock to begin the next phase of interior construction.

Symphony of the Seas will spend its inaugural summer season exploring the Mediterranean, Royal Caribbean said, calling on ports in Barcelona and Palma de Mallorca, Spain; Provence, France; Florence/Pisa, Rome and Naples, Italy. The ship will then arrive to Miami in early November to begin seven-night eastern and western Caribbean itineraries.

Symphony of the Seas will claim the title of the world’s cruise ship, offering 28 more staterooms than its newest sister ship (and previous record holder) Harmony of the Seas, and encompassing 230,000 gross registered tons.

Touting new features and amenities for guests, Symphony also will have all the features found on Harmony of the Seas, Royal Caribbean said, including a number of features that first debuted on the cruise line’s hi-tech Quantum class. Highlights include the seven-neighborhood concept of the Oasis class, multiple dining venues, Bionic Bar robot bartenders powered by Makr Shakr, Broadway-caliber entertainment, the waterfront AquaTheater, the Perfect Storm trio of waterslides, and Ultimate Abyss – the tallest slide at sea.